# SDR DXTA2026010706444

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2026
- Submitted: January 7, 2026
- Operation: Air carrier
- Aircraft: [N164QS](https://openairdocs.org/aircraft/N164QS), registered now
- Make and model: Bombdr BD7001A10
- Aircraft serial: 9649
- Aircraft time: 4,272 hours, 1,563 cycles
- Engine: Rroyce BR700710A220
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Part number: 51000207
- Part serial: D2111
- Condition: Faulty
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026010706444

## Discrepancy

AFTER TAKEOFF AND DURING CLIMB OUT THE ANTI-ICE SYSTEMS WERE SELECTED ON (IN ICING CONDITIONS).  THE CYAN "L COWL A/ICE FAULT" CAS CAME ON.  CHECKLIST PROCEDURES WERE NOTED.  THE ANTI-ICE BLEED SYNOPTIC SHOWED THE LEFT ENGINE ANTI-ICE BLEED VALVE IN AMBER WHILE THE COWL INSELF WAS DEPICTED GREEN.  THE LEFT ENGINE ANTI-ICE SYSTEM WAS CYCLED SEVERAL TIMES, EACH TIME POSTING THE SAME CAS MESSAGE. CORRECTIVE ACTION: REMOVED AND REPLACED ANTI-ICE VALVE AND SHUTOFE, PERFORMED LEAK AND OPS CHECK-NO LBAKS, OPS CHECK GOOD. NO CAS MESSAGE DISPLAYED, REF BOMBARDIER GL-6000 AMM 30-21-01.

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